I haven't been here in a while. Been working on the GMC on and off, and the Vette too.

GMC progress. The floor pix show black beauty everywhere because my girlfriend took the pix right after I was sandblasting the passenger side, but before I cleaned everything up. The driver sidewas done the day before.

I recommend 3061 fine or 3060 extra fine. I think there is one more even finer but then you are getting into less aggressive in my opinion. I buy mine by the pallet right from the plant. 64 50 lb bags a bit less than $200. All the auto parts stores buy it at the same place in large quantities, have it delivered to their warehouse, and get $8.50 to $10.00 a 50 lb bag

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Some people are like Slinkies. Not really good for anything, but they still bring a smile to your face when you push them down a flight of stairs

This is a very informative thread guys! I was wondering something though. Did you leave the replacement panels overlapped when you welded them in, or did you just screw all the parts together, then mark where the old metal needed to be cut for a butt weld, disassemble, cut the old metal back for the butt weld, and then start clamping the parts together and butt weld it all? Or did you just leave it as is in the pictures and plug weld the parts together. I'm just wondering what method you used here, and what works the best to get a really good fit and finish. ...Joe

Thanks! Looks like you did a real good job on it! I'll be watching the rest of your build. Can't wait to see what it looks like when you get done, because it looks to be a great looking truck in the making! ...Joe